Dreame L40 Ultra
$$$ Flagship$569.99
tldr; The Dreame L40 Ultra receives mostly positive reviews on Reddit (84% positive across 1,998 mentions). A solid choice in its category.
$569.99 on AmazonSentiment Breakdown
40%Positive
Positive
40%Neutral
53%Negative
7%Based on 1,994 Reddit opinions
Strengths & Weaknesses
Each axis shows what % of Reddit comments are positive about that topic. Higher = more praise.
Key Features
- High-Powered 25,000Pa Suction Performance: Powerfully clean hard floors and carpets with 25,000Pa suction and 5 suction levels for a customized clean throughout your home.
- Tackle Corner Messes with Ease: L40 Ultra Gen2 extends its brush and mop to reach corners and under furniture, delivering a deeper clean where most vacuums fail.
- Less Manual Maintenance: All-in-one self-cleaning dock streamlines the autonomous cleaning experience. 4 tailored modes let you care for carpets with precision—carpet avoidance, suction boost, intensive carpet cleaning, and 0.41in mop lifting.
- Your Trusted Navigator for Cleaner Spaces: L40 Ultra Gen2 maps your home with precision and avoids obstacles like shoes using Smart Pathfinder and 3DAdapt technologies.
- Healthier Home for Your Pets: Maintain clean pet zones with less manual effort, fostering a healthier, happier, and safer environment for your pets.
- Off-Peak Charging Saves You Money: Enjoy up to 231 minutes and 1679 ft² of cleaning in Quiet Mode, powered by a robust 5,200mAh battery that supports 30% faster and supports off-peak charging.
- Convenient App & Voice Control: Effortless control and seamless cleaning with the cleaning app and voice assistants such as Alexa, Siri, and Google Home. Supports 2.4GHz Wi-Fi only.
- Optional Auto-Detergent Dispenser: Auto-Detergent(Cleaning Solution) Dispenser is an optional accessory module available for separate purchase. You can purchase the module separately and activate aoto-dispensing function in DreameHome app for mop cleaning.
Sentiment Over Time
Historical Price Data
Dreame L40 Ultra
Dreame L40 Ultra
All-time low!
What Redditors Actually Say
What Redditors Say
Best praise vs top criticism for Dreame L40 Ultra
Best Praise
+23 pts“I’d go in with the understanding that the latest and greatest today will be outdated tomorrow. So I went for the best bang for my buck. I just got a Dreame L40 which was only $475. I actually like the performance. And really if money wasn’t an issue, I’d do a nice professional install to hook it up to my plumbing so I don’t have to fill it up or empty the dirty water. Then by a new best band for buck model every few years. If money is no o next and I could wait for it to come to the US I’d probably get the Dreame L40S (notice the s) which has 19,900 Pa for vacuum or Dreame x50 (dreames X line is their top of the line while the L is more midrange. With that said, I feel that Roborock is the more solid and reliable brand. But Dreame has its bells and whistles. Theres a lot of debate over mopping. Roller vs spinning. And for me personally with light traffic and a no shoes indoor home, I find the spinning mop good. The base washes the mop with hot water, and it picks up a lot of dirt. I also go to vacuum wars for reviews. Their top is Ecovacs, roborock, Yeedi and Dreame/Mova (mova is subsidiary of Dreame) Not everyone is impressed with Dreame but I like it so far.”
r/RobotVacuums
ViewTop Criticism
+5 pts“It’s interesting that you’re describing exactly my issue with the L40, it seems that they’re just not good for carpets.”
r/RobotVacuums
View12 more quotes available below
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Frequently Asked Questions
Is the Dreame L40 Ultra worth buying?
The Dreame L40 Ultra receives mostly positive reviews on Reddit (84% positive across 1,998 mentions). A solid choice in its category.
What do Redditors love about the Dreame L40 Ultra?
Common praise includes: "I’d go in with the understanding that the latest and greatest today will be outdated tomorrow. So I went for the best bang for my buck.
I just got a Dreame L40 which was only $475."
What are the downsides of the Dreame L40 Ultra?
Some criticisms include: "It’s interesting that you’re describing exactly my issue with the L40, it seems that they’re just not good for carpets."
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Dreame L40 Ultra has 1,994) tend to have more reliable scores.
1,994 Reddit opinions analyzed • Last updated 4/15/2026